It's only fun to log in to DU after we win elections. That forum also gives me BIG ammo to use on meandering liberals. The line about the DU topic "Which was more depressing: 9/11/01 or 11/03/04?" receiving more 75% votes for the later will get most fence-sitters to seriously reconsider the core of their own party. Once they start hearing about the traitor-like ideology of their own party, start in with taxes and security and you have a new conservative, without the mugging.
I've been to DU once or twice a long time ago and that was enough for me, but a few weeks ago I read about that topic on FReeper Rebelbase's profile page (he has the whole thread posted there).
It's disturbing the mindset that DUmmies have and it's beyond comprehension the hate and rage they possess.